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Neoadjuvant systemic treatment for breast cancer (used in locally advanced and operable breast cancer) includes anthracycline based chemotherapy (Doxorubicin/Cyclophosphamide) followed by taxanes (weekly Paclitaxel or Docetaxel) with antiHer-2 Trastuzumab or dual antiHer-2 Trastuzumab plus Pertuzumab. Other regimens include Docetaxel plus Carboplatin plus Trastuzumab alone or combined with pertuzumab for Her-2 positive patients.
The tumor microenvironment, which includes extracellular matrix and stromal cells, is a key factor in tumorigenicity and the prediction of the efficacy of immunotherapy, conventional chemotherapy, and other anticancer therapies. Tumor-infiltrating lymphocytes (TILs), one of the most important components of the tumor microenvironment, were reported to predict the response to NAC both for tumors and axillary lymph nodes in breast cancer patients. This study is conducted to examine the relationship between tumor-infiltrating lymphocytes (categorized into three levels) and the pathologic complete response to neoadjuvant systemic therapy in breast cancer patients, and to examine the relationship between TILs and 1-year invasive disease-free survival (IDFS).
Neoadjuvant systemic treatment for breast cancer is used in locally advanced and operable breast cancer. Standard neoadjuvant systemic therapy regimens for breast cancer patients include anthracycline based chemotherapy (Doxorubicin/Cyclophosphamide) followed by taxanes (weekly Paclitaxel or Docetaxel) with antiHer-2 Trastuzumab or dual antiHer-2 Trastuzumab plus Pertuzumab. Other regimens include Docetaxel plus Carboplatin plus Trastuzumab alone or combined with pertuzumab for Her-2 positive patients.
The tumor microenvironment, which includes extracellular matrix and stromal cells, is a key factor in tumorigenicity and the prediction of the efficacy of immunotherapy, conventional chemotherapy, and other anticancer therapies. Tumor-infiltrating lymphocytes (TILs), one of the most important components of the tumor microenvironment, were reported to predict the response to NAC both for tumors and axillary lymph nodes in breast cancer patients. This study is conducted to examine the relationship between tumor-infiltrating lymphocytes (categorized into three levels) and the pathologic complete response to neoadjuvant systemic therapy in breast cancer patients, and to examine the relationship between TILs and 1-year invasive disease-free survival (IDFS).
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| Label | Type | Description | Intervention Names |
|---|---|---|---|
| TIL in breast cancer patients who completed neoadjuvant therapy |
|
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| Name | Type | Description | Arm Group Labels | Other Names |
|---|---|---|---|---|
| TIL assessment in pre-existing histopathological specimens | Diagnostic Test | TIL assessment in pre-existing histopathological specimens and their relation to complete pathological response and 1-year invasive disease-free interval |
| Measure | Description | Time Frame |
|---|---|---|
| Assessment of TIL relation to pathologic complete response | TIL examined from pre-existing histopathological specimens and data of pathologic complete response will be collected from medical records | 1 year |
| Measure | Description | Time Frame |
|---|---|---|
| 1-year disease-free interval | 1-year disease-free interval will be collected from data in medical records | 1 year |
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Inclusion Criteria:
Exclusion Criteria:
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Patients aged 18 years old or more, diagnosed with breast cancer fulfilling the inclusion criteria with available histopathological sample and complete medical records will be enrolled
| Name | Role | Phone | Extension | |
|---|---|---|---|---|
| Iman A Sharawy, MD | Contact | 01068280224 | emanelsharawy@med.asu.edu.eg | |
| Ahmad Gab Allah, MD | Contact | 01066882266 |
| Name | Affiliation | Role |
|---|---|---|
| Iman Sharawy, MD | Ain Shams University | Principal Investigator |
| Facility | Status | City | State | ZIP | Country | Contacts |
|---|---|---|---|---|---|---|
| Faculty of Medicine, Ain Shams University | Recruiting | Cairo | 20 | Egypt |
The results of the study will be shared
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| ID | Term |
|---|---|
| D001943 | Breast Neoplasms |
| ID | Term |
|---|---|
| D009371 | Neoplasms by Site |
| D009369 | Neoplasms |
| D001941 | Breast Diseases |
| D012871 | Skin Diseases |
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pre-existing histopathologic samples
| D017437 |
| Skin and Connective Tissue Diseases |